.el-submenu {
    border-bottom: 1px solid #e8e8e8;
    background-color: #f2f2f2;
}
.el-menu-item, .el-submenu__title {
    height: 50px !important;
    line-height: 50px !important;
}
.el-menu-item {
    height: 50px !important;
    line-height: 50px !important;
    border-bottom: 1px dotted #e0e0e0;
}